New discovery of quartz vein-type of wolframite ore occurences in southern Qinling, Qinling orogenic belt

• LIU Wenjian, 
• WANG Peipei, 
• ZHANG Kai, 
• WANG Juli, 
• WANG Fei, 
• ZHANG Wang, 
• HU Yang, 
• JI Chongke, 
• ZHOU Xinglong, 
• CHEN Yawei